40Chapter 3 Installation and ConnectionVIDEO SYSTEM OTV-SI3.7 Connection to a wall mains outletOnly connect this instrument to a wall mains outlet. Failure todo so may cause an electric shock or fire.• Secure the power cord so that it will not be accidentallydisconnected during the procedure. The endoscopic imagewill disappear if the power cord is disconnected during use.• Do not allow the power cord to become wet. A wet powercord may cause an electric shock.• Make sure that the wall mains outlet and isolationtransformer have adequate electrical capacities. Otherwise,fire or power fluctuations can occur.• Do not bend, pull, twist or squeeze the power cord. anelectric shock, equipment damage or fire can result.• When using non-medical ancillary electrical equipment,always connect the equipment to a wall mains outlet via anisolation transformer. Otherwise, an electric shock or fire canresult.• Never use a 3-pin converter plug to connect to a 2-pin wallmains outlet, as this will prevent proper grounding and couldcause an electric shock.• Never use a table tap. Always connect the power corddirectly to a wall mains outlet. Connecting to a table tap canresult in fire.VISY218